# bash completion for update-alternatives

have update-alternatives && {
_installed_alternatives()
{
    local admindir
    # find the admin dir
    for i in alternatives dpkg/alternatives rpm/alternatives; do
        [ -d /var/lib/$i ] && admindir=/var/lib/$i && break
    done
    for (( i=1; i < COMP_CWORD; i++ )); do
        if [[ "${COMP_WORDS[i]}" == --admindir ]]; then
            admindir=${COMP_WORDS[i+1]}
            break
        fi
    done
    COMPREPLY=( $( compgen -W '$( command ls $admindir )' -- "$cur" ) )
}

_update_alternatives()
{
    local cur prev mode args i

    COMPREPLY=()
    cur=`_get_cword`
    prev=${COMP_WORDS[COMP_CWORD-1]}

    case "$prev" in
    --@(altdir|admindir))
        _filedir -d
        return 0
        ;;
    --@(help|version))
        return 0
        ;;
    esac

    # find which mode to use and how many real args used so far
    for (( i=1; i < COMP_CWORD; i++ )); do
        if [[ "${COMP_WORDS[i]}" == --@(install|remove|auto|display|config|remove-all) ]]; then
            mode=${COMP_WORDS[i]}
            args=$(($COMP_CWORD - i))
            break
        fi
    done

    case $mode in
    --install)
        case $args in
        1)
            _filedir
            ;;
        2)
            _installed_alternatives
            ;;
        3)
            _filedir
            ;;
        esac
        ;;
    --remove)
        case $args in
        1)
            _installed_alternatives
            ;;
        2)
            _filedir
            ;;
        esac
        ;;
    --auto)
        _installed_alternatives
        ;;
    --remove-all)
        _installed_alternatives
        ;;
    --display)
        _installed_alternatives
        ;;
    --config)
        _installed_alternatives
        ;;
    *)
        COMPREPLY=( $( compgen -W '--verbose --quiet --help --version \
                   --altdir --admindir' -- "$cur" ) \
                $( compgen -W '--install --remove --auto --display \
                   --config' -- "$cur" ) )
    esac
}
complete -F _update_alternatives update-alternatives alternatives
}

# Local variables:
# mode: shell-script
# sh-basic-offset: 4
# sh-indent-comment: t
# indent-tabs-mode: nil
# End:
# ex: ts=4 sw=4 et filetype=sh
